Volume 12 > Part 2 > Year 2014 > Page 363 > Orchidaceae > Calanthe

15. Calanthe puberula Lindl.wfo-0000764718

Gen. Sp. Orchid. Pl.: 252. 1833; Hook.f., Fl. Brit. India 5: 848. 1890; Seidenf., Opera Bot. 114: 94, fig. 50. 1992; N.Pearce & P.J.Cribb, Fl. Bhutan 3(3): 289. 2002; van de Bult, Nat. Hist. Bull. Siam Soc. 53: 261. 2005; S.C.Chen et al. in Z. Wu et al. (eds), Fl. China 25: 298. 2009; Kurzweil, Adansonia, sér. 3, 32: 81. 2010; D.A.Clayton & P.J.Cribb, Gen. Calanthe: 142, fig. 35.3, 45, t. 20D. 2013. Fig. 202.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Flowering shoots 25–60 cm tall. Pseudobulbs insignificant, hidden by the bases of the foliage leaves, ovoid, 2–4 by ca 2 cm. Foliage leaves 5–7, elliptic-oblong, acuminate, perennial, 6–25 by 3–7 cm; petioles 7–10 cm long. Inflorescences lax, puberulous, greenish-purple; peduncles 19–48 cm long; sterile bracts lanceolate, acuminate, glabrous, 1.8–3.2 cm long; rachis 6–12 cm long, few- to many-flowered; floral bracts lanceolate, acuminate, persistent, 15–25 by 3–5 mm. Flowers ca 20 mm in diameter; lavender, lilac or mauve. Sepals ovate-lanceolate, acuminate, 9–16 by 4–6.2 mm, outside puberulous. Petals linear-oblong, acuminate, subacute, 9–13 by 1–1.9 mm. Labellum 3-lobed, base fused with the column, 10–15 by 6–11 mm, spurless; mid-lobe ovate, apiculate, erose on the front margins, 5–9.5 by 4.5–7.5 mm; side lobes ovate oblong, obtuse, forwards-pointing, 3–6 by 3.3–3.5 mm; disk ornamented by 2 calli at the base. Column stout, 4–6.5 by ca 3 mm. Ovary (including pedicel) puberulous, 15–30 mm long. Capsule ellipsoid, ca 30 by 14 mm.

Thailand : NORTHERN: Tak, Phitsanulok.

Distribution : NE India (type), Nepal, Bhutan, Bangladesh, Myanmar, Vietnam, China, Taiwan, Japan.

Ecology : Terrestrial in hill evergreen forests; 1,300–2,100 m alt. Flowering: April, September.

Vernacular : Ua dok muang pak leam (อั้วดอกม่วงปากแหลม).